PHOSPHOR AND METHOD FOR PRODUCTION THEREOF AND PLASMA DISPLAY DEVICE

Title:

PHOSPHOR AND METHOD FOR PRODUCTION THEREOF AND PLASMA DISPLAY DEVICE

Document Type and Number:

WIPO Patent Application WO/2003/054110

Kind Code:

A1

Abstract:

A plasma display device which has a green phosphor having a crystal structure of Zn₂SiO₄:Mn, characterized in that a part of the green phosphor is substituted with a monovalent oxide, wherein the monovalent oxide is preferably at least one of lithium oxide (Li₂O), sodium oxide (Na₂O), potassium oxide (K₂O), cesium oxide (Cs₂O), rubidium oxide (Rb₂O), copper oxide (Cu₂O) and silver oxide (Ag₂O). The plasma display has a green phosphor being reduced in oxygen defects formed therein and as a result being suppressed in the deterioration of its brightness, and thus exhibits improved discharge characteristics.

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Inventors:

Sugimoto, Kazuhiko (138-8-A-201, Hazukashishimizu-cho Fushimi-ku Kyoto-shi, Kyoto, 612-8485, JP)
Otani, Mitsuhiro (3-8-31, Koryonakamachi Sakai-shi, Osaka, 590-0024, JP)
Kawamura, Hiroyuki (5-28-9, Fujigao Katano-shi, Osaka, 576-0022, JP)
Aoki, Masaki (5-12-1, Aoshinke Mino-shi, Osaka, 562-0024, JP)
Hibino, Junichi (919-1-A712, Uchiage Neyagawa-shi, Osaka, 572-0802, JP)

Application Number:

PCT/JP2002/013361

Publication Date:

July 03, 2003

Filing Date:

December 20, 2002

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-shi, Osaka, 571-8501, JP)
Sugimoto, Kazuhiko (138-8-A-201, Hazukashishimizu-cho Fushimi-ku Kyoto-shi, Kyoto, 612-8485, JP)
Otani, Mitsuhiro (3-8-31, Koryonakamachi Sakai-shi, Osaka, 590-0024, JP)
Kawamura, Hiroyuki (5-28-9, Fujigao Katano-shi, Osaka, 576-0022, JP)
Aoki, Masaki (5-12-1, Aoshinke Mino-shi, Osaka, 562-0024, JP)
Hibino, Junichi (919-1-A712, Uchiage Neyagawa-shi, Osaka, 572-0802, JP)

International Classes:

C09K11/08; C09K11/59; H01J1/63; H01J11/02; (IPC1-7): C09K11/59; C09K11/08; H01J11/02

Attorney, Agent or Firm:

Iwahashi, Fumio c/o Matsushita Electric Industrial Co. (Ltd. 1006 Oaza Kadoma Kadoma-shi, Osaka, 571-8501, JP)

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